[1]Lejin Dynasty,DING Wuyang,Xie Li.Numerical calculation of stress intensity factor of pavement structure cracks[J].Journal of Zhengzhou University (Engineering Science),2002,23(02):41-43,50.[doi:10.3969/j.issn.1671-6833.2002.02.012]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
23卷
Number of periods:
2002年02期
Page number:
41-43,50
Column:
Public date:
1900-01-01
- Title:
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Numerical calculation of stress intensity factor of pavement structure cracks
- Author(s):
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Lejin Dynasty; DING Wuyang; Xie Li
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- Keywords:
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- CLC:
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- DOI:
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10.3969/j.issn.1671-6833.2002.02.012
- Abstract:
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The stress strength factor of pavement crack tip is an important index to judge the crack propagation of crack. Using singular isoparameters and fracture mechanics theory, the single crack problem of pavement under three load simplification modes was numerically analyzed. The corresponding stress intensity factor of the crack tip was obtained by least squares regression near the crack tip, and the finite-width slats model was applied to perform numerical verification. The calculation results show that the fracture length and base modulus have a great influence on the stress strength factor of the crack tip, and the crack is easier to propagate under convex loading.